cbs 5 reporter cate caugiran is live at sfo right now. cate, we know loose seats are forcing some cancellations. so the big question, how many flights are canceled and when are they going to be back in the air? >> reporter: well, michelle, 44 flights have been canceled nationwide including two here from san francisco airport and those flights are heading to miami or were headed to miami and orlando. so that's right, check your flight this morning. american airlines says they expect to have things back on track by tomorrow. now, the airline pulled 48 boeing 757s out of service to make these repairs so there will be thousands of unhappy travelers today. the repairs started earlier this week after loose seats were reported on two separate 757s that were actually recently refurbished. american airlines says they have used the same seats for 20 years without problems until now. passengers on these flights recall the moments midair as traumatic. >> seats flipped backwards. it was actually a complete nightmare. >> the wear and tear on the lockin